You did not tried in a command prompt with a clean install in c:/Apache24 ?

AH00354: Apache is not so far with its initialization.

I am stumbled, think I cannot help you.

Only I can think of is that there is some with your Windows, maybe you tweaked it. Or Xampp/Wamp has installed/overwritten some in a Windows path like system32. It is known that Xampp can screw things up.

I have the same issue now, just after I installed the last Microsoft Windows 7 SP1 x64 Monthly security rollup (KB4056894). My last XAMPP update was xampp-win32-5.6.31-0-VC11, everything worked well until last week.

I found this thread, checked my PATH, found some suspicious characters at the concatenation between system and user PATH parts. So I refreshed both, cleaned some superfluous directories to shorten it a bit, rebooted ... the PATH appears to be fine now. Still, Apache 2.4 refuses to start, or more precisely: I see it being terminated in the XAMPP control window after ports 80 and 443 appear to get used.

Cryptographic service is running. Apache service is generally allowed in the firewall rules.

Are there possibly more verbose debug output parameters to trace the loading?